What part of an instrumentation installation drawing lists the required fittings?

The materials list is a crucial component of an instrumentation installation drawing because it specifically outlines all the necessary fittings, components, and materials required for the installation. This list helps technicians and installers understand exactly what parts they need to gather prior to beginning their work, which ensures that the installation process can proceed without unnecessary delays due to missing parts.

In addition to fittings, the materials list typically includes quantities, specifications, and possibly part numbers, aiding in both procurement and inventory management. It serves as a comprehensive reference to facilitate accurate and efficient installation based on the design provided in the drawing.

While the instrument index provides a reference for identifying instruments and their associated codes, the title block contains essential information about the drawing itself, such as project name, revision number, and date. The legend, on the other hand, provides explanations of symbols used within the drawing but does not detail the required fittings. Thus, the materials list stands out as the most relevant component for identifying fittings in an instrumentation installation drawing.